U.S. patent number 10,422,370 [Application Number 15/388,141] was granted by the patent office on 2019-09-24 for adhesive means containing particles for connecting two vehicle parts.
This patent grant is currently assigned to MAN TRUCK & BUS AG. The grantee listed for this patent is MAN Truck & Bus AG. Invention is credited to Wolfgang Burkhardt, Alexander Rosner.
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United States Patent |
10,422,370 |
Burkhardt , et al. |
September 24, 2019 |
Adhesive means containing particles for connecting two vehicle
parts
Abstract
A vehicle component, in particular an engine part, having at
least one attachment, wherein the vehicle component and the
attachment are connected to one another by means of an adhesive
means and particles are introduced into the adhesive means.
Inventors: |
Burkhardt; Wolfgang (Ansbach,
DE), Rosner; Alexander (Nurnberg, DE) |
Applicant: |
Name |
City |
State |
Country |
Type |
MAN Truck & Bus AG |
Munchen |
N/A |
DE |
|
|
Assignee: |
MAN TRUCK & BUS AG
(Munchen, DE)
|
Family
ID: |
57406025 |
Appl.
No.: |
15/388,141 |
Filed: |
December 22, 2016 |
Prior Publication Data
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|
|
Document
Identifier |
Publication Date |
|
US 20170175802 A1 |
Jun 22, 2017 |
|
Foreign Application Priority Data
|
|
|
|
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Dec 22, 2015 [DE] |
|
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10 2015 016 702 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
C09J
9/00 (20130101); F16B 11/006 (20130101); C09J
7/10 (20180101); C09J 5/00 (20130101); C09J
11/04 (20130101); F16B 47/003 (20130101); F16H
53/025 (20130101); B60K 5/12 (20130101); C08K
2201/005 (20130101); F16H 55/06 (20130101) |
Current International
Class: |
F16B
47/00 (20060101); C09J 7/10 (20180101); F16B
11/00 (20060101); C09J 11/04 (20060101); C09J
5/00 (20060101); C09J 9/00 (20060101); B60K
5/12 (20060101); F16H 53/02 (20060101); F16H
55/06 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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19504482 |
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Aug 1996 |
|
DE |
|
10121086 |
|
Dec 2002 |
|
DE |
|
S58-189277 |
|
Nov 1983 |
|
JP |
|
H11259157 |
|
Sep 1999 |
|
JP |
|
2012186125 |
|
Sep 2012 |
|
JP |
|
2013181106 |
|
Sep 2013 |
|
JP |
|
Other References
European Search Report issued in corresponding application No.
16002496.4 dated May 31, 2017. cited by applicant.
|
Primary Examiner: Masinick; Jonathan P
Attorney, Agent or Firm: Weber Rosselli & Cannon LLP
Claims
We claim:
1. A vehicle component comprising: at least one attachment; an
adhesive means connecting the at least one attachment and the
vehicle component; and particles introduced into the adhesive
means, wherein the particles increase friction between the vehicle
component and the at least one attachment or by means of the
particles introduced into the adhesive means an increase in shear
strength is achieved, and wherein, in an event of a possible
failure of the adhesive bond between the vehicle component and the
at least one attachment due to cohesion failure, by means of the
particles a crack is diverted around the particles because the
strength of the particles is greater than the strength of the
adhesive means.
2. The vehicle component according to claim 1, wherein the
particles are harder in an adhesive bonding region than the
material of the vehicle component.
3. The vehicle component according to claim 1, wherein the
particles are harder in an adhesive bonding region than the
material of the at least one attachment.
4. The vehicle component according to claim 1, wherein a surface of
the particles is jagged.
5. The vehicle component according to claim 1, wherein a surface of
the vehicle component or a surface of the at least one attachment
is textured.
6. The vehicle component according to claim 1, wherein the
particles are in contact with, interlocked with, or worked into a
surface of the vehicle component or of the at least one
attachment.
7. The vehicle component according to claim 1, wherein the
thickness of an adhesive bonding region and the dimensioning of the
particles are such that individual particles are in contact or
interlocked with the vehicle component and the at least one
attachment.
8. The vehicle component according to claim 1, wherein the
thickness of an adhesive bonding region and the dimensioning of the
particles are such that individual particles are in contact or
interlocked only with the vehicle component, whereas other
particles are in contact or interlocked only with the at least one
attachment.
9. The vehicle component according to claim 1, wherein the
diameter, the width or length of the particles is greater than 0.01
mm and/or less than 0.1 mm.
10. The vehicle component according to claim 1, wherein the
adhesive means is part of a frictional joint.
11. The vehicle component according to claim 1, wherein an adhesive
bonding region has a thickness of less than or equal to 0.05 mm or
greater than or equal to 0.05 mm.
12. The vehicle component according to claim 1, wherein the vehicle
component is a shaft and the at least one attachment is a
gearwheel, a cam or a flange.
13. The vehicle component according to claim 1, wherein the vehicle
component is an engine block and the at least one attachment
comprises an engine support.
14. The vehicle component according to claim 1, wherein the
adhesive means is oil-resistant and is exposed to oil in an
operating state of the vehicle component or the at least one
attachment.
15. The vehicle component according to claim 1, wherein the vehicle
component is an engine part.
16. A motor vehicle, comprising: a vehicle component; at least one
attachment; an adhesive means connecting the at least one
attachment and the vehicle component; and particles introduced into
the adhesive means, wherein the particles increase friction between
the vehicle component and the at least one attachment or by means
of the particles introduced into the adhesive means an increase in
shear strength is achieved, and wherein, in an event of a possible
failure of the adhesive bond between the vehicle component and the
at least one attachment due to cohesion failure, by means of the
particles a crack is diverted around the particles because the
strength of the particles is greater than the strength of the
adhesive means.
Description
BACKGROUND
1. Technical Field
The present disclosure relates to a vehicle component having an
attachment mounted thereon. In particular, the vehicle component is
a shaft, whereas the attachment is preferably a cam or a gearwheel.
The vehicle component can likewise be an engine block, for example,
whereas the attachment can be, in particular, an engine
support.
2. Description of Related Art
According to the prior art, flanges, cams or gearwheels are usually
mounted on the associated shaft by means of a nonpositive joint,
thus allowing shear forces (resulting from torques, for example) to
be transmitted between the shaft and the flange, the cams or the
gearwheels. The level of shear forces which can be transmitted
between the shaft and the cams or the gearwheels is decisively
determined by the nonpositive joint, in particular by the
mechanical friction coefficient produced by the nonpositive
joint.
SUMMARY
It is an object of the present disclosure to provide an alternative
joint between a vehicle component and an attachment and/or such a
joint which is capable of bearing higher stress, expediently one
subject to shear.
This object can be achieved by means of the features of the main
claim. Advantageous developments of the present disclosure can be
found in the dependent claims and the following description of
preferred embodiments of the present disclosure.
The present disclosure provides a vehicle component, in particular
an engine part (e.g. a shaft, an engine block etc.), having at
least one attachment, wherein the vehicle component and the
attachment are connected to one another in an adhesive bonding
region, preferably an adhesive bonding region that can be subjected
to shear, by means of an adhesive means (e.g. adhesive). In
particular, the adhesive means is distinguished by the fact that
particles are introduced into the adhesive means, with the result
that the adhesive means preferably brings about a material joint
and/or the particles have the effect of increasing friction between
the vehicle component and the attachment.
By means of the particles introduced into the adhesive means, it is
possible, in particular, to achieve an increase in shear strength,
which expediently leads to a stronger joint between the vehicle
component and the attachment.
The adhesive means has an adhesive strength. In particular, the
adhesive strength describes the strength of the joint between the
adhesive means and the materials of the components to be connected,
that is to say, in particular, the vehicle component and the
attachment.
The adhesive means has a cohesive strength. In particular, the
cohesive strength describes the inherent strength of the adhesive
means.
It is possible for the cohesive strength of the adhesive means to
be greater than the adhesive strength of the adhesive means. As an
alternative or in addition, the particles can be harder in the
adhesive bonding region than the material of the attachment.
By introducing particles, expediently small solid particles,
preferably uniformly, into the adhesive means, the surface areas
with an adhesive effect can be increased. Distribution of the
particles in the adhesive means, preferably as uniformly as
possible, is desirable.
The strength of the particles is preferably greater than the
strength of the adhesive means.
It is possible for the particles to be harder in the adhesive
bonding region than the material of the vehicle component.
It is possible for the surface of the particles to be jagged and,
in particular, to be noncircular in order expediently to achieve
enlargement of the surface area and/or to allow an interlocking
effect with the surface of the vehicle component and/or of the
attachment.
It is possible for the surface of the vehicle component and/or the
surface of the attachment to be jagged and/or textured, e.g. by
surface machining, and thus, in particular, to be uneven in order
expediently to achieve an enlargement of the surface area and/or to
allow an interlocking effect with the particles.
In one embodiment, in which the surface of the particles is jagged
and the surface of the vehicle component and/or the surface of the
attachment is jagged/textured, an interlocking effect between the
particles, on the one hand, and the vehicle component and/or the
attachment, on the other hand, can expediently be achieved.
The jagged surfaces of the particles preferably likewise allow
lengthening of a potential failure crack (e.g. crack surface),
leading, in particular, to an increase in the strength of the
adhesive bond between the vehicle component and the attachment.
It is possible that i) the particles are in contact with the
surface of the vehicle component and/or the surface of the
attachment, ii) are interlocked with the surface of the vehicle
component and/or the surface of the attachment, and/or iii) are
worked into the surface of the vehicle component and/or the surface
of the attachment, e.g. by applying a static normal force or a
dynamic movement when joining the vehicle component and the
attachment.
It is possible for the thickness of the adhesive bonding region
between the vehicle component and the attachment and the
dimensioning of the particles to be such that individual particles
are in contact and/or interlocked with the vehicle component, on
the one hand, and simultaneously with the attachment, on the other
hand.
It is likewise possible for the thickness of the adhesive bonding
region between the vehicle component and the attachment and the
dimensioning of the particles to be such that individual particles
are in contact and/or interlocked only with the vehicle component,
but expediently spaced apart from the attachment, whereas other
particles are in contact and/or interlocked only with the
attachment, but expediently spaced apart from the vehicle
component.
It is possible for the particles to have a diameter, a width and/or
length greater than or equal to 0.01 mm and/or less than or equal
to 0.1 mm.
The adhesive means is preferably part of a frictional joint.
The adhesive bonding region can have a thickness of preferably less
than or equal to 0.05 mm, e.g. being embodied as a "zero gap
adhesive joint", or a thickness greater than or equal to 0.05 mm.
The thickness preferably corresponds to a mean thickness if the
surface of the vehicle component and/or of the attachment is of
textured or jagged design, e.g. to the nominal spacing defined in
the attached figures (drawing scale does not take account of
tolerances).
The vehicle component is preferably a shaft and the attachment can
expediently be a gearwheel, a flange or a cam.
The flange is preferably formed axially on one shaft end. The cam
is preferably formed along and/or radially on a shaft.
The shaft can be embodied as a camshaft or crankshaft, for
example.
The vehicle component can also be an engine block, for example, and
the attachment can expediently comprise an engine support.
The adhesive means is preferably oil-resistant and is exposed to
oil in the operating state of the vehicle component and/or of the
attachment, e.g. wetted with oil or even soaked in oil. The oil can
be engine oil and/or transmission oil, for example.
Carbides can be used as particles, for example.
The adhesive bonding region is expediently an adhesive joint, e.g.
an adhesive layer.
It should be mentioned that, in the event of possible failure of
the adhesive bond between the vehicle component and the attachment
due to cohesion failure, it is possible, by means of the particles,
for a crack to be diverted around the particles because their
strength is expediently greater than the strength of the adhesive
means. The critical surface area of the adhesive bond, in
comparison especially with the potential crack surface, can thereby
be increased. Moreover, the higher adhesive effect of the adhesive
means at the particles can have a positive effect and thus act to
increase strength.
The present disclosure is not restricted to an arrangement
comprising a vehicle component and an attachment but also includes
a vehicle, preferably a motor vehicle, in particular a commercial
vehicle, e.g. a bus or a heavy goods vehicle, having a vehicle
component as disclosed herein.
The above-described preferred embodiments and features of the
present disclosure can be combined with one another. Other
advantageous developments of the present disclosure are disclosed
in the dependent claims or will become apparent from the following
description of preferred embodiments of the present disclosure in
conjunction with the attached figures.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a schematic illustration of a vehicle component having
an attachment and an adhesive joint in accordance with one
embodiment of the present disclosure, and
FIG. 2 shows a schematic illustration of a vehicle component having
an attachment and an adhesive joint in accordance with another
embodiment of the present disclosure.
DETAILED DESCRIPTION
FIG. 1 shows a schematic view of a section of a vehicle component 1
and of a section of an attachment 2 mounted thereon, in accordance
with one embodiment of the present disclosure. The vehicle
component 1 can be a shaft, for example, while the attachment 2 can
then be a gearwheel, a flange or a cam, for example. However, it is
likewise possible for the vehicle component 1 to be an engine
block, for example, while the attachment 2 can then be an engine
support.
The vehicle component 1 and the attachment 2 are connected to one
another by means of an adhesive means (e.g. adhesive) 3 in an
adhesive bonding region (e.g. adhesive joint), in particular an
adhesive bonding region subject to shear stress. Into the adhesive
means 3, particles 4 are introduced, the strength of which is
greater than the strength of the adhesive means 3. Moreover, the
particles 4 are harder than the material of the vehicle component 1
and the material of the attachment 2. The cohesive strength of the
adhesive means 3 is expediently greater than the adhesive strength
of the adhesive means 3.
In the embodiment shown in FIG. 1, the thickness D of the adhesive
bonding region, that is to say, in particular, the thickness D of
the adhesive joint, is more than 0.05 mm. In the embodiment shown
in FIG. 1, the thickness D of the adhesive bonding region and the
dimensions of the particles 4 are embodied in such a way that
individual particles 4 are in contact only with the vehicle
component 1, while they are spaced apart from the attachment 2,
whereas other particles 4 are in contact only with the attachment
2, while they are spaced apart from the vehicle component 1.
It is apparent from FIG. 1 that the surface of the particles 4 is
jagged, with the result that an enlargement of the surface area is
achieved. The surfaces of the vehicle component 1 and of the
attachment 2 are likewise jagged but can also expediently be of
textured design (e.g. structured design), with the result that an
enlargement of the surface area is achieved. By virtue of the fact
that the surfaces of the particles 4, on the one hand, and the
surfaces of the vehicle component 1 and of the attachment 2, on the
other hand, are of jagged design, an interlocking effect that
increases the friction coefficient can be brought about between the
particles 4, on the one hand, and the vehicle component 1 and the
attachment 2, on the other hand. The jagged particles 4 furthermore
lead to a lengthening of a potential failure crack, e.g. a crack
surface, by means of the adhesive bond, resulting, in particular,
in an increase in the strength of the adhesive bond between the
vehicle component 1 and the attachment 2.
The surface areas with an adhesive effect can be increased by
introducing small solid particles 4, preferably uniformly, into the
adhesive means 3. The particles 4 should be arranged so as to be
distributed as uniformly as possible in the adhesive 3. The
particles 4 expediently have a surface which is as jagged as
possible and is therefore large. To take account of a potential
failure of the adhesive bond between the vehicle component 1 and
the attachment 2 due to cohesion failure, the introduced particles
4 enable a potential crack to be diverted around the particles 4
since the strength of the particles 4 is greater than the strength
of the adhesive means 3. The critical surface area of the adhesive
bond, in comparison with the potential crack surface, can thereby
be increased. Moreover, the higher adhesive effect of the adhesive
means 3 at the particles 4 has a positive effect, that is to say
increases strength.
FIG. 2 shows a schematic view of a section of a vehicle component 1
and of a section of an attachment 2 mounted thereon in accordance
with another embodiment of the present disclosure. The embodiments
shown in FIGS. 1 and 2 partially correspond, and therefore the same
reference signs are used for similar or identical parts and, to
explain them, reference is also made to the description of the
other embodiment in order to avoid repetitions.
In the embodiment shown in FIG. 2, the thickness D of the adhesive
bonding region, that is to say, in particular, the thickness D of
the adhesive joint, is less than 0.05 mm. The adhesive bond can be
embodied as a "zero-gap adhesive joint".
The thickness D of the adhesive bonding region and the dimensioning
of the particles 4 are such that individual particles 4 are in
contact, preferably interlocked, with the vehicle component 1, on
the one hand, and simultaneously with the attachment 2, on the
other hand. If hard particles 4, e.g. carbides, are used, the
ability of the adhesive bonding region to bear shear stress, which
is illustrated schematically by reference signs 5a (shear force 1)
and 5b (shear force 2), is increased. In this case, the particles 4
in contact with the parts to be adhesively bonded, i.e. the vehicle
component 1 and the attachment 2, can have the effect of increasing
the friction coefficient.
One method of increasing the adhesive strength can be achieved by
embedding hard particles 4 into the (parent) material of the
vehicle component 1 and/or of the attachment 2. This can be
accomplished by applying a static normal force or a dynamic
movement of the component surfaces to be adhesively bonded along
the adhesive bonding region, e.g. when joining the parts to be
adhesively bonded, i.e. the vehicle component 1 and the attachment
2.
The present disclosure is not restricted to the preferred
embodiments described above. On the contrary, a large number of
variants and modifications is possible which likewise make use of
the inventive concept and therefore fall within the scope of
protection. Moreover, the present disclosure also claims protection
for the subject matter and features of the dependent claims,
independently of the features and claims to which they refer
back.
LIST OF REFERENCE SIGNS
1 vehicle component, in particular shaft or engine block
2 attachment, in particular gearwheel, cam or engine support
3 adhesive means, in particular adhesive
4 particles
5a shear force 1
5b shear force 2
D thickness of the adhesive bonding region, in particular of the
adhesive joint
* * * * *